EP 3751182 A4 20220302 - SOLENOID VALVE
Title (en)
SOLENOID VALVE
Title (de)
MAGNETVENTIL
Title (fr)
ÉLECTROVANNE
Publication
Application
Priority
- JP 2018022362 A 20180209
- JP 2019002846 W 20190129
Abstract (en)
[origin: EP3751182A1] The present invention improves the operation accuracy of the solenoid valve. A solenoid valve includes an inlet port into which a fluid flows, an outlet port from which a fluid flows, a seal member arranged in a channel of a fluid between the inlet port and the outlet port and having an opening, a valve body configured to open and close the opening of the seal member to open and close the channel, a first spring configured to bias the valve body against the seal member so as to close the opening of the seal member, electromagnetic driving means, including an umbrella-shaped movable core configured to move the valve body and an electromagnetic coil configured to attract the umbrella-shaped movable core, for operating by being energized by the electromagnetic coil so as to open the opening of the seal member by attracting the umbrella-shaped movable core and separating the valve body from the opening, and a second spring configured to exert, on the umbrella-shaped movable core, a spring force weaker than a spring force of the first spring in a direction opposite to a biasing direction of the first spring, wherein the second spring is provided with rotation preventing means for preventing the umbrella-shaped movable core from rotating with respect to the electromagnetic coil.
IPC 8 full level
F16K 31/06 (2006.01)
CPC (source: EP US)
F16K 1/38 (2013.01 - US); F16K 1/42 (2013.01 - US); F16K 31/0634 (2013.01 - US); F16K 31/0655 (2013.01 - EP US); F16K 31/0696 (2013.01 - EP US); F16K 2200/302 (2021.08 - EP)
Citation (search report)
- [XDI] US 3368791 A 19680213 - LEON WELLS DAVID
- [XY] US 4442998 A 19840417 - OHYAMA TADASHI [JP], et al
- [X] US 2934090 A 19600426 - KENANN JOHN G, et al
- [Y] US 2017211699 A1 20170727 - SASANUMA KYOHEI [JP], et al
- [A] US 3472483 A 19691014 - JANCZUR ZBIGNIW J
- [A] US 4971290 A 19901120 - DAHLMANN GERD-UWE [DE]
- [A] US 2004163722 A1 20040826 - CORNEA MARIUS [DE]
- [A] US 3179123 A 19650420 - SLAWOMIR KOWALSKI, et al
- [A] JP 2008053148 A 20080306 - MATSUSHITA ELECTRIC WORKS LTD, et al
- See references of WO 2019155932A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3751182 A1 20201216; EP 3751182 A4 20220302; JP 6774577 B2 20201028; JP WO2019155932 A1 20200702; US 11326708 B2 20220510; US 2020362982 A1 20201119; WO 2019155932 A1 20190815
DOCDB simple family (application)
EP 19751529 A 20190129; JP 2019002846 W 20190129; JP 2019570690 A 20190129; US 202016986671 A 20200806